Dax Help

Sorry all , this question is related to my other issue but I have select solved and I cant undo it 

@themistoklisThanks , error gone, cheers

@themistoklis the error is gone but I just came a cross another issue/error:

this above meaure uses multiple measures from other datasets

and on my other meaure which returen stings value I am using 

PR = CALCULLATE(SUM(viewName[pq) = "N"]

this is string and I belive cant use CAL SUM?

what would I use ?

and 

 PR = CALCULATE(COUNT(viewName[A]),viewName[P]) ="N"

first value is numver and second is string 

thanks